Re: IDLE WHEEL
I had less than 30 km's on my '99 MXZ 670 HO, and I hit this killer jump, and landed hard on the rear left, Knocked the idler right off... The wheel pulled right off the bearing, I wondered if the snap ring was installed properly, apperantly this has been a problem. I also wondered why there was only three rear idlers. I complained to my dealer and he supplied the parts necessary to install the "Missing" wheel, so that I have four rear idlers like all the rest of 'em. I also opted to install aluminum outside idlers (I paid for them)... That will solve the problem. Anyway, I don't know how cooperative your dealer is going to be... most of them suck!!
Anyway, Good luck.
PS I now have well over 1700km's on it and haven't had anymore problems.